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单选题
现有: 1.class SuperFoo{ 2.SuperFoo doStuff (int x) { 3.return new SuperFoo(); 4. } 5. } 6. 7. class Foo extends SuperFoo { 8. //insert code here 9. } 和四个声明: Foo doStuff (int x) { return new Foo(); } Foo doStuff (int x) { return new SuperFoo(); } SuperFoo doStuff(int x) { return new Foo(); } SuperFoo doStuff(int y) { return new SuperFoo(); } 分别插入到第8行,有几个可以通过编泽?()
A
1
B
2
C
3
D
4
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更多 “单选题现有: 1.class SuperFoo{ 2.SuperFoo doStuff (int x) { 3.return new SuperFoo(); 4. } 5. } 6. 7. class Foo extends SuperFoo { 8. //insert code here 9. } 和四个声明: Foo doStuff (int x) { return new Foo(); } Foo doStuff (int x) { return new SuperFoo(); } SuperFoo doStuff(int x) { return new Foo(); } SuperFoo doStuff(int y) { return new SuperFoo(); } 分别插入到第8行,有几个可以通过编泽?()A 1B 2C 3D 4” 相关考题
考题
现有如下程序段#include "stdio.h"int aa(int x,int y);main(){int a=24,b=16,c;c=aa(a,b);printf("%d\n",c);}int aa(int x,int y){int w;while(y){w=x%y;x=y;y=w;}return x;}则程序段的输出结果是A.8B.7C.6D.5
考题
下列带缺省值参数的函数说明中,正确的说明是 ______。A.int Fun(int x, int y=2,int z=3);B.int Fun(int x=1,int y,int z=3);C.int Fun(int x, int y=2,iht z);D.int Fun(int x=1,int y, int z=3);
考题
public class Pass{ public static void main(String[]args){ int x=5; Pass p=new Pass(); p.doStuff(x); System.out.print("mainx="+x); } void doStuff(intx){ System.out.print("doStuffx="+x++); } } What is the result?()A、Compilation fails.B、An exception is thrown at runtime.C、doStuff x=6 main x=6D、doStuff x=5 main x=5E、doStuff x=5 main x=6F、doStuff x=6 main x=5
考题
interface DeclareStuff{ public static final int EASY = 3; void doStuff(int t); } public class TestDeclare implements DeclareStuff { public static void main(String [] args) { int x=5; new TestDeclare().doStuff(++x); } void doStuff(int s) { s += EASY + ++s; System.out.println(”s “ + s); } } What is the result?() A、 s 14B、 s 16C、 s 10D、 Compilation fails.E、 An exception is thrown at runtime.
考题
现有: class TestFoo f int x; String y; int getX() { return x; } String getY() {return y; } void setX (int x) { int Z=7: this.x=x; } 可以添加多少个修饰符来封装此类?() A、5B、4C、3D、2
考题
现有: 1.class Passer f 2.static final int X=5; 3.public static void main (String [] args) { 4.new Passer( ).go (x); 5.System. out .print (x); 6. ) 7.void go (int x) { 8.System. out .print(x++); 9.} 10.}结果是什么?()A、55B、56C、65D、66
考题
现有: class Foo { public static void main (String [] args) { int x=O; int y=4; for (int z=0; z3; Z++; X++) { if(x1++y10) y++; } System. out .println (y); } } 结果是什么?() A、7B、8C、10D、12
考题
Given the command line java Pass2 and: public class Pass2 { public void main(String [] args) { int x=6; Pass2 p = new Pass2(); p.doStuff(x); System.out.print(” main x = “+ x); } void doStuff(int x) { System.out.print(” doStuffx = “+ x++); } } What is the result?() A、 Compilation fails.B、 An exception is thrown at runtime.C、 doStuffx = 6 main x = 6D、 doStuffx = 6 main x = 7E、 doStuffx = 7 main x = 6F、 doStuffx = 7 main x = 7
考题
public class Pass { public static void main(String [1 args) { int x 5; Pass p = new Pass(); p.doStuff(x); System.out.print(” main x = “+ x); } void doStuff(int x) { System.out.print(” doStuff x = “+ x++); } } What is the result?() A、 Compilation fails.B、 An exception is thrown at runtime.C、 doStuffx = 6 main x = 6D、 doStuffx = 5 main x = 5E、 doStuffx = 5 main x = 6F、 doStuffx = 6 main x = 5
考题
1. class SuperFoo { 2. SuperFoo doStuff(int x) { 3. return new SuperFoo(); 4. } 5. } 6. 7. class Foo extends SuperFoo { 8. //insert code here 9. } 下面哪三项分别插入到第8行,可以编译?()A、int doStuff() { return 42; }B、int doStuff(int x) { return 42; }C、Foo doStuff(int x) { return new Foo(); }D、SuperFoo doStuff(int x) { return new Foo(); }
考题
Which two code fragments are most likely to cause a StackOverflowError?()A、int []x = {1,2,3,4,5};for(int y = 0; y 6; y++) System.out.println(x[y]);B、static int[] x = {7,6,5,4};static { x[1] = 8;x[4] = 3; }C、for(int y = 10; y 10; y++)doStuff(y);D、void doOne(int x) { doTwo(x); }void doTwo(int y) { doThree(y); }void doThree(int z) { doTwo(z); }E、for(int x = 0; x 1000000000; x++) doStuff(x);F、void counter(int i) { counter(++i); }
考题
单选题现有: Public/project]class TestFoo { int x; String y; int getX() { return x; } (4,5,6是方法) String getY() { return y; } void setX(int x) { int z = 7; this.x = x; } } Private代表属性封装可以添加多少个修饰符来封装此类?()A
2B
3C
4D
5
考题
单选题Given the command line java Pass2 and: What is the result? ()A
doStuff x = 6 main x = 6B
Compilation fails.C
doStuff x = 6 main x = 7D
An exception is thrown at runtime.E
doStuff x = 7 main x = 6F
doStuff x = 7 main x = 7
考题
多选题1. class SuperFoo { 2. SuperFoo doStuff(int x) { 3. return new SuperFoo(); 4. } 5. } 6. 7. class Foo extends SuperFoo { 8. //insert code here 9. } 下面哪三项分别插入到第8行,可以编译?()Aint doStuff() { return 42; }Bint doStuff(int x) { return 42; }CFoo doStuff(int x) { return new Foo(); }DSuperFoo doStuff(int x) { return new Foo(); }
考题
单选题public class Pass { public static void main(String [1 args) { int x 5; Pass p = new Pass(); p.doStuff(x); System.out.print(” main x = “+ x); } void doStuff(int x) { System.out.print(” doStuff x = “+ x++); } } What is the result?()A
Compilation fails.B
An exception is thrown at runtime.C
doStuffx = 6 main x = 6D
doStuffx = 5 main x = 5E
doStuffx = 5 main x = 6F
doStuffx = 6 main x = 5
考题
单选题Given the command line java Pass2 and: public class Pass2{ public void main(String[]args){ int x=6; Pass2 p=new Pass2(); p.doStuff(x); System.out.print("mainx="+x); } void doStuff(intx){ System.out.print("doStuffx="+x++); } } What is the result?()A
Compilation fails.B
An exception is thrown at runtime.C
doStuffx=6 main x=6D
doStuffx=6 mainx =7E
doStuffx=7 mainx =6F
doStuffx=7 mainx =7
考题
单选题1. interface DoStuff2 { 2. float getRange(int low, int high); } 3. 4. interface DoMore { 5. float getAvg(int a, int b, int c); } 6. 7. abstract class DoAbstract implements DoStuff2, DoMore { } 8. 9. class DoStuff implements DoStuff2 { 10. public float getRange(int x, int y) { return 3.14f; } } 11. 12. interface DoAll extends DoMore { 13. float getAvg(int a, int b, int c, int d); } What is the result?()A
The file will compile without error.B
Compilation fails. Only line 7 contains an error.C
Compilation fails. Only line 12 contains an error.D
Compilation fails. Only line 13 contains an error.E
Compilation fails. Only lines 7 and 12 contain errors.F
Compilation fails. Only lines 7 and 13 contain errors.G
Compilation fails. Lines 7, 12, and 13 contain errors.
考题
单选题interface DeclareStuff{ public static final int EASY = 3; void doStuff(int t); } public class TestDeclare implements DeclareStuff { public static void main(String [] args) { int x=5; new TestDeclare().doStuff(++x); } void doStuff(int s) { s += EASY + ++s; System.out.println(”s “ + s); } } What is the result?()A
s 14B
s 16C
s 10D
Compilation fails.E
An exception is thrown at runtime.
考题
单选题Given: What is the result?()A
Compilation fails.B
An exception is thrown at runtime.C
doStuff x = 6 main x = 6D
doStuff x = 6 main x = 7E
doStuff x = 7 main x = 6
考题
单选题1.class SuperFo{ 2. SuperFo doStuff(int x){ 3.return new SuperFo() 4.} 5.} 6. 7.class Foo extends SuperFo{ 8.//insert code here 9.} 和四个声明: Foo doStuff(int x){return new Foo();} Foo doStuff(int x){return new SuperFoo();} SuperFoo doStuff(int x){return new foo();} SuperFoo doStuff(int y){return new SuperFoo();} 分别插入到第8行,有几个可以通过编译 ()A
1B
2C
3D
4E
5
考题
单选题现有: class TestFoo f int x; String y; int getX() { return x; } String getY() {return y; } void setX (int x) { int Z=7: this.x=x; } 可以添加多少个修饰符来封装此类?()A
5B
4C
3D
2
考题
单选题现有: 1.class Over { 2.int dolt (long x) { return 3; } 3. } 4. 5. class Under extends Over { 6.//insert code here 7. } 和四个方法: short dolt (int y) { return 4; } int dolt(long Xr long y) { return 4; } private int dolt(short y) { return 4; } protected int dolt (long x) { return 4; } 分别插入到第6行,有几个可以通过编译?()A
1B
2C
3D
4
考题
多选题Which two code fragments are most likely to cause a StackOverflowError?()Aint []x = {1,2,3,4,5};for(int y = 0; y 6; y++) System.out.println(x[y]);Bstatic int[] x = {7,6,5,4};static { x[1] = 8;x[4] = 3; }Cfor(int y = 10; y 10; y++)doStuff(y);Dvoid doOne(int x) { doTwo(x); }void doTwo(int y) { doThree(y); }void doThree(int z) { doTwo(z); }Efor(int x = 0; x 1000000000; x++) doStuff(x);Fvoid counter(int i) { counter(++i); }
考题
多选题现有: public class TestDemo{ private int X-2; static int y=3; public void method(){ final int i=100; int j =10; class Cinner { public void mymethod(){ //Here } } } } 在Here处可以访问的变量是哪些?()AXByCjDi
考题
单选题现有: class Banana2 f static int X=2; public static void main (String [] args) { int X=2; Banana2 b=new Banana2(); b.go(x); } static {x+=x; } void go (int x) { ++x; System. out.println (x); } 结果为:()A
7B
5C
3D
2
考题
单选题Given the command line java Pass2 and: public class Pass2 { public void main(String [] args) { int x=6; Pass2 p = new Pass2(); p.doStuff(x); System.out.print(” main x = “+ x); } void doStuff(int x) { System.out.print(” doStuffx = “+ x++); } } What is the result?()A
Compilation fails.B
An exception is thrown at runtime.C
doStuffx = 6 main x = 6D
doStuffx = 6 main x = 7E
doStuffx = 7 main x = 6F
doStuffx = 7 main x = 7
考题
单选题public class Pass{ public static void main(String[]args){ int x=5; Pass p=new Pass(); p.doStuff(x); System.out.print("mainx="+x); } void doStuff(intx){ System.out.print("doStuffx="+x++); } } What is the result?()A
Compilation fails.B
An exception is thrown at runtime.C
doStuff x=6 main x=6D
doStuff x=5 main x=5E
doStuff x=5 main x=6F
doStuff x=6 main x=5
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